报告介绍 Surfaces provide platforms for self-assembly of well-defined molecular structures. By adjusting the balance of molecular-molecular interactions and molecule-surface interactions, diverse molecular patterns can be created. Beyond molecular self-assembly, “on-surface covalent coupling” or “on-surface reaction” under ultrahigh vacuum (UHV) conditions became a new concept in the ...

报告介绍

报告介绍

报告介绍 Abstract:Using integrated waveguide structures, integrated quantum photonic chips show us a high performance platform from which to further develop quantum technologies and experimental quantum physics using single photons. Quantum state preparation, manipulation, and measurement as well as the first on-chip quantum metrology experiments have been demonstrated based on silica-on-silicon waveguide. W...

报告介绍

报告介绍 We have measured the electron spin relaxation time in (111)-oriented GaAs quantum wells (QW) by time-resolved photoluminescence spectroscopy. By embedding the QWs in a PIN or NIP structure we demonstrate the tuning of the conduction band spin splitting and hence the spin relaxation time with an applied external electric field applied along the growth z direction. The application of an external elect...

报告介绍 超导能隙是超导中电子形成库伯对的直接后果，因而是理解超导微观机理的关键。比如常规的BCS超导中的电子是s波配对，具有各向同性的能隙；铜氧化物高温超导则是d波配对，能隙是各向异性，具有节点。一类新的高温超导体，铁基超导，于2008年发现之后，人们发现它的性质非常丰富。比如它既有节点，也有非节点的成员；既有电子和空穴两种费米面同时存在的成员，也有只有电子型费米面的成员。我们通过角分辨光电子能谱，测量了大量铁基超...

报告介绍 报告摘要：DNA moleculesstore genetic information and play a critical role in all living organisms. Our research focuses on engineering DNA (and also RNA) as both genetic (bio) and generic (nano) materials. More specifically, by treating DNA as a true polymer and employing a variety of enzymatic and physical tools, we can precisely control and manipulate DNA into nanoscale materials building blocks. ...

报告介绍 We present a theoretical evidence that a monopole emerges in dynamic magnetic systems in the presence of the spin-orbit interaction. The monopole field is expressed in terms of the spin damping associated with the magnetization dynamics. We demonstrate that the observation of this spin damping monopole is accomplished electrically by use of the Ampere's law for the monopole current. Our discovery su...

报告介绍 庄林教授简历：1989~1993年，武汉大学化学系，大学本科，获理学学士1993~1998年，武汉大学化学学院，研究生，获理学博士1998~2001年，武汉大学化学与分子科学学院，讲师2001~2003年，武汉大学化学与分子科学学院，副教授2003年至今，武汉大学化学与分子科学学院，教授，博士生导师2004~2005年，美国康奈尔大学材料研究中心，访问学者2011年至今，武汉大学珞珈特聘教授获奖与荣誉：2011 年获国家杰出青年科学基金2011 年获教育部自然...

报告介绍 报告摘要Come and learn:What is quantum gravity & why is it interesting?What is a gauge theory? How can a geometrical theory like classical general relativity be viewed as a gauge theory?What is loop quantum gravity? What is space-time foam?Are time machines possible?What about causality?What about topology?Conclusions: So what?报告人简介:Paul was born in New York. He received his B.A. in 1979 fr...

报告介绍 Majorana fermions are long-sought exotic particles that are their own antiparticles. In this talk, we show how to utilize superconducting circuits to construct two superconducting-qubit arrays where Majorana modes can occur. Moreover, we propose to use four superconducting qubits as the smallest system to demonstrate the braiding of Majorana modes and show how the states before and after braiding Ma...

报告介绍 报告摘要:非共价作用(如氢键、静电和疏水作用)普遍存在于天然金属酶中，对酶活化或底物催化过程有重要的协同作用，基于超分子化学理论的金属酶模拟在酶的活性中心亚稳态和次层结构的生物功能模拟具有极大的潜力。毛宗万教授课题组开展基于环糊精的金属酶模型的构建，并获得了重要成果。同时，毛宗万教授课题组设计了以环糊精修饰的纳米载体，用于化疗药物和siRNA的输送研究。所制备的量子点（CdSe、CdSe/CdS和CdSe/ZnSe等）经过L-精...

报告介绍 Abstract:Turing instability in activator-inhibitor systems provides a paradigm of non-equilibrium self-organization; it has been extensively investigated for biological and chemical processes. However, Turing instability is also possible in networks. They have studied Turing patterns in large random networks. The initial linear instability leads to spontaneous differentiation of the network nodes in...

报告介绍 In(Ga)As quantum dots on GaAs are very attractive candidates to confine single excitons and single spins serving as solid state qubits in a mature semiconductor platform. Quantum dots can be implemented to efficiently generate single photons or entangled photon pairs on demand. Light-matter interaction in coupled quantum dot-cavity systems can be largely controlled by embedding the quantum dots into...

报告介绍 报告摘要可再生新能源技术（包括光伏和动力电池等）是人类解决能源危机，气候变化等全球问题的必然方向。基于纳米材料和复合纳米结构的能源纳米器件是这一领域中的热点。在纳米尺度上对器件中的表、界面结构和电信号的分析将加深我们对器件机理的认识，指导新器件设计和性能提升。这里我们将首先介绍新型有机／无机复合光伏电池和薄膜有机光伏电池研究，特别是器件中的界面对性能的决定性影响；其次，在储能技术方面，锂离子电池已广...